Starter for explosive-engines.



A. H. DALZBLL.

STARTER FOB EXPLOSIVE ENGINES.

APPLICATION FILED 001:.1,.1ao9.

1,002,372. Patented Sept. 5, 191 1.;

UNITED STATES PATENT OFFICE.

- ANDREW H. DAIZELL. OF ROCHESTER, NEW YORK, ASSIGNOB 0! ONE-HALF TO 'OHABLES J. PEMBROKE, OI ROCHESTER, NEW YORK.

STARTER FOB EIPLOBIVE-ENGINES.

Specification of Letter: we.

Patented Sept. 5, 1911.

a lication med October 1, 1909. serial ll'o. 520,446.

Be it known that I, ANDREW H. DALZ of Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Starters for Explosive-Engines; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawmgs, forming a part of this specificatlon, and to the reference-numerals marked thereon.

The present invention relates to starters for internal explosive engines and ithas for ing fluid pressure for starting the en 'ne without producing any great amount of netion when the starter is not in use.

Another object is to provide a construction which will permit the starter shaft to be employed for operating the timer of the on e.

g t i ll another object is to provide for the reversal of an internal explosive engine with a fluid pressure starter.

In the drawings: Figure 1 illustrates diagrammatically a gas engine having the present invention attached thereto; Fig. 2 is a section of one embodiment of the starting or fluid distributin valve; Fi 3 is a section of another em odiment 0 said valve; and, Fig. 4 is a horizontal section of the valve casing showing the construction of the rotary member;

Referring more particularly to the drawings and to the embodiment shown in Figs. 1 and 2, 1 indicates a gas engine-having a plurality of cylinders with the usual intake and exhaust valves and the other appurtenances of'such machines. Leading to the intake of each cylinder 2 is one of a plurality of pipes or connections 3 adapted to receive fluid such as air from the valve casing 4 of the starting valve which in turn is supplied with air from a compressed air reservoir 6 by a pipe or connection 5 having therein a valve 22 which is employed for cutting off air to the starting valve.

The starting valve in the embodiment shown in Figs. 1 and 2 has its casing 4 provided with a plurality of discharge openings 7 each communicating with a connection '3 and controlled by a rotary member8 preferably in the form of a disk provided with an opening or arcuate slot 9 adapted to register successlvely with the discharge openings 7.

Preferably journaled loosely within the casing is a shaft 10 which may be driven from the casing in order to prevent the escape of air about the shaft 10 and after the pressure is reduced or the air from the reservoir is cut off from the starting valve the rotary member is moved away from its seat preferably by resilient means, such as a helical sprlng 14 arranged between the shaft 10 and the rotary member.

In the embodiment shownin Fig. 3 the parts are adjustable to permit the reversal of the engine. To this end the casing 2 has flexible connections 3 leading to the engine and a flexible connection 5 leading from the reservoir 6. It is also mounted to rotate about the axis of rotation of the member 8 which controls the discharge from the casing so that the slot 9 may be made to reach the openings 7 at different times. To the end that the rotation of the casing may be effected the latter is journaled in a bracket 15 or other suitable support, and is provided with a laterally extending handle or grip l6 to facilitate its adjustment. Also turning loosely in the'casing is a timer shaft 17 operating a timer 18 and carrying a disk 19 which is'connected to the shaft 10 by a pin, a slot connection 20 permitting the disk to move toward and from the proximate inner wall of the casing to prevent the escape of air about the timer shaft, resilient means, such as helical spring 21 being arranged between "the timer shaft and the disk and serving to move the disk from its seat When' air is cut off to the valve casing from the reservoir. The timer shaft is connected to the starter shaft so as to be operated thereby and to this end the disk 19 carries a non-circular portion 23 which is received within a correspondingly formed pocket 24 in disk 8, permitting a relatively axial movement of the disk but causing them to rotate together.

In operation the valve 22 is opened to admit air to casing 4 and the air exerts its pressure on the disks 8 and 19 closing the openings about the shafts 10 and 17. From "the casing the air passes through a connection 3 or 3 to a cylinder ofthe en gine causingthe latter tomove'the shifting rotary member'S or 8* to another opening 3 or 3- and causing the engine to operate. The air within the reservoir will be sufiicient to drive A the engine sucha, distance as to cause the engine to operate under the action of the explosive mixture, when the valve 22 should.

- be. closed permitting the disks 8 and 19 to vided with a. plurality ,of discharge ports each connected to one of the engine cylinders and a rotary. member driven by the engine and operating in the casing to open said ports, said casing being pivotally supported and capable of oscillatory "adjustment relative to the rotary member to position its ports to effect a movement of the pistons to drive the engine in either a forward or a reverse direction and means for supplying fluid under pressure to the valve casing. I

- 2; The combination with an explosive engine comprising a plurality ofcylinders, of a starting valve comprising a casing adapted to receive fluid under ressure and provided with a plurality of discharge ports, flexible conduits leadin from each of said ports directly to one of the cylinders, and a rotary member driven by the engine and operating in the casing to successively open said ports, said casing being adjustable relatively to the rotary member to alter the normal location of its ports in respect to said member for the purpose of effecting a movement of the pistons to start the engine either in a forward or reverse direction.

3. The combination with a gas engine embodying a plurality of cylinders, of a starting valve therefor comprising a rotatably mounted casing receiving compressed air from a suitable supply and provided with a plurality of discharge openings, a valve rotatable in the casing about the axis of rotation of the latter'to open the discharge openings, and a shaft driven by the engine, turning in the casing and connected to the valve.

4. The combination with a gas engine embodying aplurality of cylinders, of a starting valve therefor comprislng a valve casing receiving compressed am from a suit- .able air supply and provided with a plurality of discharge openings each connected to one of the cylinders and also a rotary disk seating in the casing and operating in the casing/to open the discharge openings, a shaft driven by the engine, turning in the casin and connected to the rotary member, resi ient means moving the rotary member away from its seat when the supply of air 1s cut off to the casing, a timer shaft turning in the casin and connected to the first namjed shaft, a dlsk turning with said timer shaft and seating, against the wall of the casing about the said timer shaft, and resilient means moving said disk from its seat .when pressure is reduced with in the casing.

5. The combination-with a gas engine embodying a plurality of cylinders, of a start ing valve therefor com rising a valve casing-adapted toreceive uid under ressure and provided with a plurality of discharge ports each connected to one of the cylinders of the engine, a rotary member operating in the casing to open the discharge ports, a shaft driven by the engine and con nected atone end of the casing to the ro-.

tary member, a timer shaft journaled in the opposite end of the casin and a connectlon between the timer aft and the rotary member, said connection having longliltufdinal movement relatively to the timer s a t.

6. The combination with a gas engine embodying a plurality of cylinders, of a starting valve therefor com rising a valve casing adapted to receive uid underressure and provided with a plurality of discharge ports each connected to one of thecylinders of the engine, a rotar member operating in the casing to open t e discharge ports, a shaft driven by the engine and connected to the rotary member, a timer shaft journaled in the casing, a member connected to the timer shaft and in locking engagement with the rotary member, both of sad members having movement longitudinally of the shafts to which they are respectively secured.

. 7. The combination with a gas engine embodying a plurality of cylinders, of a starting valve therefor comprising a casing adapted to receive fluid under ressure from a suitable supply and provide with a plurality of discharge ports, a valve rotatable in the casing to 0 en the discharge ports, a 

